+AC_ARG_WITH(libiptc, [AS_HELP_STRING([--with-libiptc@<:@=PREFIX@:>@], [Path to libiptc.])],
+[
+ if test "x$withval" != "xno" && test "x$withval" != "xyes"
+ then
+ LDFLAGS="$LDFLAGS -L$withval/lib"
+ CPPFLAGS="$CPPFLAGS -I$withval/include"
+ with_libiptc="yes"
+ fi
+],
+[
+ if test "x$ac_system" = "xLinux"
+ then
+ with_libiptc="yes"
+ else
+ with_libiptc="no (Linux only)"
+ fi
+])
+if test "x$with_libiptc" = "xyes"
+then
+ AC_CHECK_LIB(iptc, iptc_init,
+ [
+ AC_DEFINE(HAVE_LIBIPTC, 1, [Define to 1 if you have the iptc library (-liptc).])
+ ], [with_libiptc="no (libiptc not found)"])
+fi
+if test "x$with_libiptc" = "xyes"
+then
+ AC_CHECK_HEADERS(libiptc/libiptc.h,
+ [
+ AC_DEFINE(HAVE_LIBIPTC_LIBIPTC_H, 1, [Define to 1 if you have the <libiptc/libiptc.h> header file.])
+ ], [with_libiptc="no (libiptc/libiptc.h not found)"])
+fi
+if test "x$with_libiptc" = "xyes"
+then
+ collect_libiptc=1
+else
+ collect_libiptc=0
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBIPTC, test "x$with_libiptc" = "xyes")
+